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TX4 Taxi Dashboard Warning Lights Guide
Understanding your TX4 Taxi’s dashboard warnings is vital for passenger safety, avoiding breakdowns, and maintaining reliability. This guide categorizes lights by urgency, explaining their meaning and required actions.

Red Warning Lights (Stop Immediately)
Brake System Alert

Indicates low brake fluid or hydraulic failure. Park immediately, check fluid levels, and contact a mechanic. Do not drive.
Oil Pressure Warning

Low oil pressure detected. Stop the engine immediately to prevent damage. Check oil levels or leaks before restarting.
Electrical Charge Warning

Battery isn’t charging. Electrical systems may fail. Turn off non-essential electronics and seek urgent service.
High Engine Coolant Temperature

Engine overheating. Pull over, turn off the engine, and let it cool. Check coolant levels or leaks.
Power Steering Failure

Power steering malfunction. Steering will feel heavier. Drive cautiously at low speed to a service center.
SRS Airbag Warning

Airbag system fault. Immediate service required to ensure crash protection functions properly.
Engine Management System (Red)

Critical engine control module failure. Stop driving immediately to avoid engine damage. Seek urgent repairs.
Low Fuel Level (Critical)

Fuel nearly empty. Engine may stall. Refuel immediately with at least 8 liters to prevent system damage.
Security Alert (Immobilizer Fault)

Anti-theft system error. Restart the vehicle; if persistent, use a spare key or visit a dealer.
Door Ajar (Rear Doors)

Rear door not fully closed. Check doors before driving. Audible warnings will sound if ignored.
Yellow/Amber Warning Lights (Action Required Soon)
ABS Warning

Anti-lock braking system fault. Brakes work normally, but ABS may not engage. Schedule diagnostics soon.
Water in Fuel Indicator

Water detected in the fuel filter. Drain the filter immediately to prevent engine damage.
Brake Light Bulb Failure

Brake light bulb(s) faulty. Replace bulbs promptly to ensure visibility and compliance with safety regulations.
Windscreen Washer Fluid Low

Washer fluid reservoir low. Refill soon to maintain clear visibility.
Glow Plug Warning (Diesel)

Pre-heating system active. Wait for the light to extinguish before starting the engine in cold conditions.
DPF Alert (Diesel)

Diesel particulate filter clogged. Drive at highway speeds to regenerate or visit a mechanic.
Motion Locks System Fault

Rear door locking mechanism issue. Doors may not lock/unlock properly. Inspect the system promptly.
Security LED Flashing Rapidly

Immobilizer system error. Ensure the correct key is used. If persistent, seek electrical diagnostics.
Low Fuel Warning (Early Stage)

Fuel level low. Refuel soon to avoid engine stalling or fuel system damage.
Green Warning Lights (Information Only)
Turn Signal Active

Direction indicators in use. Automatically cancels after turns. Check bulbs if flashing irregularly.
High Beam Active

High-beam headlights on. Switch to low beams when approaching traffic.
Rear Fog Lights On

Rear fog lights active. Use only in poor visibility (e.g., heavy rain or fog).
Eco Mode Indicator

Fuel-efficient driving mode engaged. Maintain steady acceleration for optimal savings.
Cruise Control Engaged

Cruise control active. Adjust speed using steering controls.
Heated Rear Screen Active

Rear window defroster on. Turns off automatically after a set time.
Note: Always consult your TX4 handbook for model-specific details. If any warning light persists, contact a certified LTI technician to ensure safety and compliance.

